The UTRCA will be collecting brook trout eggs, raising the fish to fingerlings, and then releasing them in the spring.
The Upper Thames River Conservation Authority is hoping to re-establish the Brook Trout population in the area.
They are hoping to collect 7,500 Brook Trout eggs from the Mud Creek and Avon River watersheds. Once collected the eggs will be sent to a hatchery and will be raised until they are fingerlings.
Marketing Specialist Steve Sauder says the fish will be returned to restored watersheds in the spring.
"We've been working with land owners, with conservation clubs, and the staff trying to design and improve these headwaters. So if they've gotten to the point where they can sustain native Brook Trout populations - we've been transferring trout fingerlings into more headwater streams."
The UTRCA has been working to make the cold water streams healthier and has been planting trees in those areas.